The Pro Plus system also features a parking brake that fits inside the rear rotor hat. Because the rear caliper bracket bolts onto the axle flange, Baer supplies a new backing plate spacer that will allow the parking brake system to bolt onto the rear caliper mount bracket. The procedure calls for simultaneously inserting the axle, parking brake, and spacer plate to the housing. A&E found it was easier to use a light adhesive to hold the spacer plate onto the parking brake unit, which makes installing the hex head bolts through the hole in the axle flange much simpler.
Once this was done, the calipers need to be properly aligned to the rotors. Shims are used to align the top and bottom of the caliper mounting bracket to the axle flange bracket. A&E measured the distances between the inner sidewall of the caliper to the rotor, and used the appropriate amount of shims to ensure they were properly aligned. With the correct combination of shims in place the caliper bracket is bolted to the axle bracket. When it comes time to change pads, however, the calipers can be unbolted from the top of the caliper bracket, leaving the axle mount brackets and shims in their permanent position.
To gain as much traction as possible, it was imperative to stuff some wide rubber into the rear wheelwells. Although we made plenty of room with the DSE rear tubs and QuadraLink suspension system we also had to utilize a custom set of wheels: a set of Rushforth 18x12 Livewire wheels for the rear and 18x10s for the front. They have a brushed-aluminum face with a clearcoat, and polished inner and outer lips. With a 5.625-inch rear backspacing on the rear pair, we were able to fit BFGoodrich P335/30ZR18 tires with plenty of room to spare.

To keep the plate from slipping...

To keep the plate from slipping off the parking-brake backing plate during assembly, A&E used a light-duty adhesive to hold it in position.

The Moser axle with the Baer...

The Moser axle with the Baer parking brake assembly could then be inserted into the axlehousing.

The Baer rear caliper bracket...

The Baer rear caliper bracket was bolted to the axlehousing flange.
The wheels have plenty of clearance between the shocks, inner fenders, and outer fenders. Furthermore, the Detroit Speed suspension also allows us to fine-tune the ride height with the adjustable coilover shocks, and aside from the fact that the rear looks totally sick, it has the right combination of rubber, traction control, and power distribution that will make the car incredibly fun to drive on the street and track.

You can see how gluing the...

You can see how gluing the spacer plate to the parking-brake backing plate makes it much easier to install the bolts through the hole in the axle flange.

The entire assembly is bolted...

The entire assembly is bolted up tight and is ready for the disc brake installation.

Baer's Pro Plus kit uses 14-inch-diameter...

Baer's Pro Plus kit uses 14-inch-diameter rotors in front and rear. These massive rotors fit over the 1/2-inch studs and the parking brake assembly fits inside the hat.

The Baer 6P system has a rear...

The Baer 6P system has a rear mounting plate that holds the caliper on the sides and top. The pads are high-performance pieces that will give the Camaro some racing-style stopping power that can be used on the street.

Although the calipers look...

Although the calipers look like the front units, they have smaller pistons for proper front-to-rear brake bias.

The rear calipers must also...

The rear calipers must also be properly aligned. A&E followed the installation instructions and measured the distance from the caliper to the rotor from the top, middle, and bottom.

Baer provides a shim kit,...

Baer provides a shim kit, and after a couple of trial fittings and measuring, A&E found the correct amount of shims that properly align the caliper mount and axle flange mount.

The bolts with the shims were...

The bolts with the shims were attached to the caliper mount for a final measurement check. The two hex head bolts at the top of the caliper allow you to remove it to replace the brake pads and not affect the alignment.

A final alignment check verified...

A final alignment check verified our shim selection. This eliminates improper pad wear and limits vibration and noise.

The calipers were then removed...

The calipers were then removed to install the pads.

Here's what it looks like...

Here's what it looks like with the rear rotors and pads installed.

Then A&E installed the Rushforth...

Then A&E installed the Rushforth 18x12 wheels wrapped with P335/30ZR18 BFG KDW tires.

There's little guesswork when...

There's little guesswork when it comes to wheel fitment. Detroit Speed supplied us with the exact specs to perfectly fit the Livewires with the monster KDWs, requiring a 5.625-inch rear backspacing.

Under the car, you can see...

Under the car, you can see there's plenty of clearance ... maybe even for a set of 10.5-wide slicks?

Now that the rear suspension...

Now that the rear suspension and axle are completed, we're in awe over the entire package. With full suspension adjustability, big rubber, and plenty of stopping power, we can't wait to see what it can do.